All states have laws prohibiting driving under the influence (DUI) of drugs or alcohol. However, some states call the offense by different names, such as “driving while intoxicated” (DWI) and “operating under the influence” (OUI). State laws also differ on how DUI is defined and the consequences of a conviction.

This site provides information on DUI laws, including possible defenses and state-specific penalties.

Find Laws by State

Learn about DUI and DWI Laws in your state, as well as other common driving law violations. Get the information you need, talk to a local lawyer if you need professional help.